<!--SIF Implementation Specification 2.2-6 (March 17, 2008)-->
<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" targetNamespace="http://www.sifinfo.org/infrastructure/2.x" xmlns:sif="http://www.sifinfo.org/infrastructure/2.x" elementFormDefault="qualified">
  <xs:import namespace="http://www.w3.org/XML/1998/namespace" schemaLocation="imports/xml/xml.xsd" />
  <xs:complexType name="AssessmentSubTestType">
    <xs:sequence>
      <xs:element name="Name" type="xs:normalizedString" />
      <xs:element name="ScoreRange" minOccurs="0" nillable="true">
        <xs:complexType>
          <xs:sequence>
            <xs:element name="Minimum" minOccurs="0" nillable="true" type="xs:token" />
            <xs:element name="Maximum" minOccurs="0" nillable="true" type="xs:token" />
          </xs:sequence>
          <xs:attribute name="ScoreMetric" use="required" type="sif:NCES0056AssessmentReportingMethodType" />
        </xs:complexType>
      </xs:element>
      <xs:element name="PerformanceLevels" minOccurs="0" nillable="true">
        <xs:complexType>
          <xs:sequence>
            <xs:element name="PerformanceLevel" minOccurs="0" maxOccurs="unbounded">
              <xs:complexType>
                <xs:sequence>
                  <xs:element name="CutScores" minOccurs="0" nillable="true">
                    <xs:complexType>
                      <xs:sequence>
                        <xs:element name="LowerCut" minOccurs="0" nillable="true" type="xs:token" />
                        <xs:element name="UpperCut" minOccurs="0" nillable="true" type="xs:token" />
                      </xs:sequence>
                      <xs:attribute name="ScoreMetric" use="required" type="sif:NCES0056AssessmentReportingMethodType" />
                    </xs:complexType>
                  </xs:element>
                </xs:sequence>
                <xs:attribute name="LevelName" use="required" type="xs:token" />
              </xs:complexType>
            </xs:element>
          </xs:sequence>
        </xs:complexType>
      </xs:element>
      <xs:element name="SubjectArea" minOccurs="0" nillable="true" type="xs:token" />
      <xs:element name="GradeLevels" minOccurs="0" nillable="true" type="sif:GradeLevelsType" />
      <xs:element name="AssessmentSubTestRefIds" minOccurs="0" nillable="true">
        <xs:complexType>
          <xs:sequence>
            <xs:element name="AssessmentSubTestRefId" maxOccurs="unbounded" type="sif:IdRefType" />
          </xs:sequence>
        </xs:complexType>
      </xs:element>
      <xs:element name="SubTestTier" minOccurs="0" nillable="true" type="xs:unsignedInt" />
      <xs:element name="LearningStandardItemRefIds" minOccurs="0" nillable="true">
        <xs:complexType>
          <xs:sequence>
            <xs:element name="LearningStandardItemRefId" maxOccurs="unbounded" type="sif:IdRefType" />
          </xs:sequence>
        </xs:complexType>
      </xs:element>
      <xs:element name="SIF_Metadata" minOccurs="0" nillable="true" type="sif:SIF_MetadataType" />
      <xs:element name="SIF_ExtendedElements" minOccurs="0" nillable="true" type="sif:SIF_ExtendedElementsType" />
    </xs:sequence>
    <xs:attribute name="RefId" use="required" type="sif:RefIdType" />
  </xs:complexType>

  <xs:element name="AssessmentSubTest" type="sif:AssessmentSubTestType" />

</xs:schema>